Additional data type ops: deinit.

While unloading cas_cache module, volume types were deinitialized, although core
pool still wasn't empty. Now this deinitialization can be done after removing
cores from core pool, and before context is freed.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>

modules/cas_cache/volume/vol_atomic_dev_bottom.h

@@ -26,6 +26,4 @@ struct atomic_dev_params {
 
 int atomic_dev_init(void);
 
-void atomic_dev_deinit(void);
-
 #endif /* __VOL_ATOMIC_DEV_BOTTOM_H__ */